75 mph on the flat seems about right...roughly same as my one liter Geo Metro...won’t get that up a grade unless there’s a huge magnet at the top. P.S. top speed is more a matter of aerodynamic drag coefficient and power than it is power-to-weight ratio. The latter is important in acceleration.
Agreed. But if your at, say, 5500rpm at 70mph and your trying to get to 75mph at your redline of 6,000, your well beyond the peak of the torque curve and the HP curve is going rapidly toward a flat line....it's gonna take a while.